31811760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:172

約数の個数: 240

約数和(自身を含む): 119081664

約数和(自身を除く): 87269904

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 23, 24, 30, 34, 36, 40, 45, 46, 48, 51, 60, 68, 69, 72, 80, 85, 90, 92, 102, 113, 115, 120, 136, 138, 144, 153, 170, 180, 184, 204, 207, 226, 230, 240, 255, 272, 276, 306, 339, 340, 345, 360, 368, 391, 408, 414, 452, 460, 510, 552, 565, 612, 678, 680, 690, 720, 765, 782, 816, 828, 904, 920, 1017, 1020, 1035, 1104, 1130, 1173, 1224, 1356, 1360, 1380, 1530, 1564, 1656, 1695, 1808, 1840, 1921, 1955, 2034, 2040, 2070, 2260, 2346, 2448, 2599, 2712, 2760, 3060, 3128, 3312, 3390, 3519, 3842, 3910, 4068, 4080, 4140, 4520, 4692, 5085, 5198, 5424, 5520, 5763, 5865, 6120, 6256, 6780, 7038, 7684, 7797, 7820, 8136, 8280, 9040, 9384, 9605, 10170, 10396, 11526, 11730, 12240, 12995, 13560, 14076, 15368, 15594, 15640, 16272, 16560, 17289, 17595, 18768, 19210, 20340, 20792, 23052, 23391, 23460, 25990, 27120, 28152, 28815, 30736, 31188, 31280, 34578, 35190, 38420, 38985, 40680, 41584, 44183, 46104, 46782, 46920, 51980, 56304, 57630, 62376, 69156, 70380, 76840, 77970, 81360, 86445, 88366, 92208, 93564, 93840, 103960, 115260, 116955, 124752, 132549, 138312, 140760, 153680, 155940, 172890, 176732, 187128, 207920, 220915, 230520, 233910, 265098, 276624, 281520, 311880, 345780, 353464, 374256, 397647, 441830, 461040, 467820, 530196, 623760, 662745, 691560, 706928, 795294, 883660, 935640, 1060392, 1325490, 1383120, 1590588, 1767320, 1871280, 1988235, 2120784, 2650980, 3181176, 3534640, 3976470, 5301960, 6362352, 7952940, 10603920, 15905880, 31811760]

約数ペア:

[(1, 31811760), (2, 15905880), (3, 10603920), (4, 7952940), (5, 6362352), (6, 5301960), (8, 3976470), (9, 3534640), (10, 3181176), (12, 2650980), (15, 2120784), (16, 1988235), (17, 1871280), (18, 1767320), (20, 1590588), (23, 1383120), (24, 1325490), (30, 1060392), (34, 935640), (36, 883660), (40, 795294), (45, 706928), (46, 691560), (48, 662745), (51, 623760), (60, 530196), (68, 467820), (69, 461040), (72, 441830), (80, 397647), (85, 374256), (90, 353464), (92, 345780), (102, 311880), (113, 281520), (115, 276624), (120, 265098), (136, 233910), (138, 230520), (144, 220915), (153, 207920), (170, 187128), (180, 176732), (184, 172890), (204, 155940), (207, 153680), (226, 140760), (230, 138312), (240, 132549), (255, 124752), (272, 116955), (276, 115260), (306, 103960), (339, 93840), (340, 93564), (345, 92208), (360, 88366), (368, 86445), (391, 81360), (408, 77970), (414, 76840), (452, 70380), (460, 69156), (510, 62376), (552, 57630), (565, 56304), (612, 51980), (678, 46920), (680, 46782), (690, 46104), (720, 44183), (765, 41584), (782, 40680), (816, 38985), (828, 38420), (904, 35190), (920, 34578), (1017, 31280), (1020, 31188), (1035, 30736), (1104, 28815), (1130, 28152), (1173, 27120), (1224, 25990), (1356, 23460), (1360, 23391), (1380, 23052), (1530, 20792), (1564, 20340), (1656, 19210), (1695, 18768), (1808, 17595), (1840, 17289), (1921, 16560), (1955, 16272), (2034, 15640), (2040, 15594), (2070, 15368), (2260, 14076), (2346, 13560), (2448, 12995), (2599, 12240), (2712, 11730), (2760, 11526), (3060, 10396), (3128, 10170), (3312, 9605), (3390, 9384), (3519, 9040), (3842, 8280), (3910, 8136), (4068, 7820), (4080, 7797), (4140, 7684), (4520, 7038), (4692, 6780), (5085, 6256), (5198, 6120), (5424, 5865), (5520, 5763)]